Decision tools · Compare

EOS R3 vs Z9

Quick take: The Z9 has the highest resolution at 46MP; the Z9 is the most affordable.

16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

EOS R3 — Sports & Photojournalism Professionals: The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.

Z9 — Professional Sports & Wildlife: The Z9 redefined what professional mirrorless could be — no mechanical shutter, 45MP stacked BSI, and 8K RAW in the most rugged Z body.

Who should buy what
EOS R3 (2021)
is the right camera for you if…
  • Professional sports and photojournalism photographers
  • Canon users who need the fastest burst and most reliable AF in the system
  • R5 users who want a pro-grade grip and faster shooting speed
  • Event photographers who need eye-controlled AF and dual card slots
Z9 (2021)
is the right camera for you if…
  • Professional sports, wildlife and photojournalism photographers
  • Nikon D6 or D850 users making the final switch to mirrorless
  • Those who need the fastest, most reliable AF Nikon has ever made
  • Professionals who need a flagship body with no mechanical shutter
Full specificationsthe better value in each row is highlighted
Specification EOS R3Canon · 2021Z9Nikon · 2021
Price £4,999Best£4,999Best
Sensor 24.1MP full-frame BSI stacked CMOS45.7MP full-frame BSI stacked CMOS
Resolution 24.1MP45.7MPBest
Video 6K RAW, 4K/120p, 1080p/180p8K/30p RAW, 4K/120p, ProRes RAW
Autofocus Dual Pixel CMOS AF II with Eye Control AFSubject detection AF, 493-point phase-detect
Stabilisation 8-stop IBIS6-stop IBIS
Burst Rate 30fps electronic / 12fps mechanicalBest20fps RAW / 120fps JPEG
Battery Life 620 shots (CIPA)740 shots (CIPA)Best
Weight 1015g (body only)Best1340g (body only)
Dimensions 150.0 × 142.6 × 87.2mm149.0 × 149.5 × 90.5mm
Weather Sealed YesYes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps0.5" Quad-VGA OLED EVF, 3.69M dots, 120fps
Screen 3.2" fully articulating touchscreen3.2" tilting touchscreen
Mount Canon RFNikon Z-mount
Memory Cards Dual CFexpress Type BDual CFexpress Type B / XQD
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LANUSB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
EOS R3
Z9
Portrait
8.1/10
8.2/10
Street
5.8/10
5.0/10
Travel
5.7/10
5.0/10
Wedding & Events
8.2/10
8.4/10
Vlogging & Video
5.4/10
—
Filmmaking
8.1/10
7.9/10
Documentary
7.8/10
7.6/10
Sports & Action
8.9/10
9.2/10
Landscape
6.3/10
6.7/10
Wildlife
8.7/10
8.9/10
Casual
4.6/10
4.0/10
Food
7.4/10
6.9/10
Macro
7.2/10
6.6/10
Architecture
6.5/10
6.8/10
Astrophotography
6.7/10
7.2/10

Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →

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